! File: 5227C.PROP ! Database: PEPDB ! Date: 24-FEB-1994:02:03:24 coverpage: title_1: GHRS EXTENDED OBJECT SPECTRUM ALIGNMENT TEST proposal_for: CAL/HRS pi_title: DR. pi_fname: STEPHEN pi_mi: J. pi_lname: HULBERT pi_inst: STSCI pi_country: USA pi_phone: 301-338-4911 keywords_1: CALIBRATION hours_pri: 4.00 num_pri: 1 hrs: Y ! end of coverpage abstract: line_1: This proposal will measure the amount that the spectrum line_2: of an extended source "falls off" the GHRS diode array. line_5: This calibration will be done with G200M near 2200 A line_6: and with G270M near 3200 A. The target used is the line_7: bright earth. ! ! end of abstract general_form_proposers: lname: HULBERT fname: STEPHEN title: DR. inst: STSCI country: USA ! lname: SODERBLOM fname: DAVID title: DR. inst: STSCI country: USA ! ! end of general_form_proposers block general_form_text: question: 2 section: 1 line_1: The goal of this test is to calibrate the loss of flux line_2: from the ends of a spectrum produced by an object line_3: that completely fills the LSA. A series of overlapping line_4: spectra will be taken; this series will consist of three line_6: spectra whose central wavelengths differ by half the line_7: length of an individual spectrum. line_10: Additionally, a spectrum will be taken in the SSA at the line_11: second wavelength position of the series followed by a line_12: repeat in the LSA. The SSA will provide line_13: essentially a point source and permit an evaluation line_14: of the flux falloff. The sequence of spectra is: line_15: LSA-W1;LSA-W2;SSA-W2;LSA-W2:LSA-W3, where W1, W2, and W3 line_16: refer to the central wavelengths of the spectra. ! question: 3 section: 1 line_1: The test consists of the following steps: line_2: 1. Blind pointing at earth line_3: 2a. three overlapping spectra with G200M line_4: 2b. LSA-SSA-LSA spectra with G200M line_5: 3. five spectra with G270M line_6: Note: G200M series of spectrum broken up to line_7: fit into separate orbits. ! question: 5 section: 1 line_1: Exposure times are dictated by the low surface brightness line_2: of the earth at 2200 A, the need to get a signal-to-noise line_3: ratio of 15, and the need to fit a series of spectra line_4: into a single orbit. ! !end of general form text general_form_address: lname: HULBERT fname: STEPHEN title: DR. category: CON inst: SPACE TELESCOPE SCIENCE INSTITUTE addr_1: 3700 SAN MARTIN DRIVE city: BALTIMORE state: MD zip: 21218 country: USA ! lname: SODERBLOM fname: DAVID title: DR. category: PI inst: SPACE TELESCOPE SCIENCE INSTITUTE addr_1: 3700 SAN MARTIN DRIVE city: BALTIMORE state: MD zip: 21218 country: USA ! ! end of general_form_address records ! No fixed target records found ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 100.000 targname: EARTH-CALIB config: HRS opmode: ACCUM aperture: 2.0 sp_element: G200M wavelength: 2180 num_exp: 1 time_per_exp: 598.4S s_to_n: 15 fluxnum_1: 1 priority: 1 req_1: SEQ 100-140 NO GAP; req_2: SEQ 100-105 NON-INT; req_3: CYCLE 3 / 100-240 comment_1: FLUX(2200)=4.0E-13 ERG/CM2/S/A comment_2: SENSITIVITY(2200)= comment_3: 9.38E11 C/S/D /(ERG/CM2/S/A) comment_4: EXPECT 0.4 C/S/D ! linenum: 105.000 targname: EARTH-CALIB config: HRS opmode: ACCUM aperture: 2.0 sp_element: G200M wavelength: 2200 num_exp: 1 time_per_exp: 299.2S s_to_n: 15 fluxnum_1: 1 priority: 1 ! linenum: 110.000 targname: EARTH-CALIB config: HRS opmode: ACCUM aperture: 2.0 sp_element: G200M wavelength: 2200 num_exp: 1 time_per_exp: 299.2S s_to_n: 15 fluxnum_1: 1 priority: 1 req_1: SEQ 110-115 NON-INT; ! linenum: 115.000 targname: EARTH-CALIB config: HRS opmode: ACCUM aperture: 2.0 sp_element: G200M wavelength: 2220 num_exp: 1 time_per_exp: 598.4S s_to_n: 15 fluxnum_1: 1 priority: 1 ! linenum: 117.000 targname: WAVE config: HRS opmode: ACCUM aperture: SC2 sp_element: G200M wavelength: 2200 num_exp: 1 time_per_exp: DEF s_to_n: 10 fluxnum_1: 1 priority: 1 comment_1: COMPUTE AND APPLY SPYBAL ! linenum: 120.000 targname: EARTH-CALIB config: HRS opmode: ACCUM aperture: 2.0 sp_element: G200M wavelength: 2200 num_exp: 1 time_per_exp: 299.2S s_to_n: 10 fluxnum_1: 1 priority: 1 req_1: SEQ 120-125 NON-INT ! linenum: 125.000 targname: EARTH-CALIB config: HRS opmode: ACCUM aperture: 0.25 sp_element: G200M wavelength: 2200 num_exp: 1 time_per_exp: 598.4S s_to_n: 3 fluxnum_1: 1 priority: 1 ! linenum: 130.000 targname: EARTH-CALIB config: HRS opmode: ACCUM aperture: 0.25 sp_element: G200M wavelength: 2200 num_exp: 1 time_per_exp: 598.4S s_to_n: 3 fluxnum_1: 1 priority: 1 req_1: SEQ 130-140 NON-INT ! linenum: 140.000 targname: EARTH-CALIB config: HRS opmode: ACCUM aperture: 2.0 sp_element: G200M wavelength: 2200 num_exp: 1 time_per_exp: 299.2S s_to_n: 10 fluxnum_1: 1 priority: 1 ! linenum: 200.000 targname: EARTH-CALIB config: HRS opmode: ACCUM aperture: 2.0 sp_element: G270M wavelength: 3180 num_exp: 1 time_per_exp: 27.2S s_to_n: 80 fluxnum_1: 1 priority: 1 req_1: SEQ 200-240 NON-INT comment_1: FLUX(3200)=4.0E-10 ERG/CM2/S/A comment_2: SENSITIVITY(3200)= comment_3: 5.68E11 C/S/D/(ERG/CM2/S/A) comment_4: EXPECT 230 C/S/D ! linenum: 210.000 targname: EARTH-CALIB config: HRS opmode: ACCUM aperture: 2.0 sp_element: G270M wavelength: 3200 num_exp: 1 time_per_exp: 27.2S s_to_n: 80 fluxnum_1: 1 priority: 1 ! linenum: 220.000 targname: EARTH-CALIB config: HRS opmode: ACCUM aperture: 0.25 sp_element: G270M wavelength: 3200 num_exp: 1 time_per_exp: 598.4S s_to_n: 50 fluxnum_1: 1 priority: 1 ! linenum: 230.000 targname: EARTH-CALIB config: HRS opmode: ACCUM aperture: 2.0 sp_element: G270M wavelength: 3200 num_exp: 1 time_per_exp: 27.2S s_to_n: 80 fluxnum_1: 1 priority: 1 ! linenum: 240.000 targname: EARTH-CALIB config: HRS opmode: ACCUM aperture: 2.0 sp_element: G270M wavelength: 3220 num_exp: 1 time_per_exp: 27.2S s_to_n: 80 fluxnum_1: 1 priority: 1 comment_1: CENTRAL WAVELENGTH IS OUTSIDE comment_2: NOMINAL RANGE FOR G270M ! ! end of exposure logsheet ! No scan data records found